有一个问题困扰着我。EndOfStreamException总是在提交拓扑后发生在zookeeper中。虽然它不影响集群的正常运行，但我仍然希望解决这个问题，因为它可能会影响Heron功能的其他部分。动物园管理员的版本是3.4.10，部署在我集群的一个主机中的单机上。zoo.cfg的内容如下。
tickTime=10000
initLimit=100
syncLimit=50
dataDir=/home/yitian/zookeeper/data
dataLogDir=/home/yitian/zookeeper/logs
clientPort=2181
maxClientCnxns=100
server.1=heron01:2888:3888
此外，dataDir中还有myid文件，其内容为：1。这是我的动物园管理员配置。鹭体内statemgr.yaml的含量如下：
com.twitter.heron.statemgr.zookeeper.curator.CuratorStateManager
heron.statemgr.connection.string: "heron01:2181"
heron.statemgr.root.path: "/heron"
heron.statemgr.zookeeper.is.initialize.tree: True
在我的Heron集群中有四个主机，一个mesos主主机和三个代理主机。在zookeeper日志文件中，EndOfStreamException发生在三个代理主机中。zookeeper.log的内容如下：
2018-07-10 10:30:06,565 [myid:] - INFO [main:QuorumPeerConfig@134] - Reading configuration from: /home/yitian/zookeeper/zookeeper-3.4.10/bin/../conf/zoo.cfg
2018-07-10 10:30:06,574 [myid:] - INFO [main:QuorumPeer$QuorumServer@167] - Resolved hostname: heron01 to address: heron01/218.195.228.24
2018-07-10 10:30:06,574 [myid:] - ERROR [main:QuorumPeerConfig@345] - Invalid configuration, only one server specified (ignoring)
2018-07-10 10:30:06,576 [myid:] - INFO [main:DatadirCleanupManager@78] - autopurge.snapRetainCount set to 3
2018-07-10 10:30:06,576 [myid:] - INFO [main:DatadirCleanupManager@79] - autopurge.purgeInterval set to 0
2018-07-10 10:30:06,576 [myid:] - INFO [main:DatadirCleanupManager@101] - Purge task is not scheduled.
2018-07-10 10:30:06,576 [myid:] - WARN [main:QuorumPeerMain@113] - Either no config or no quorum defined in config, running in standalone mode
2018-07-10 10:30:06,584 [myid:] - INFO [main:QuorumPeerConfig@134] - Reading configuration from: /home/yitian/zookeeper/zookeeper-3.4.10/bin/../conf/zoo.cfg
2018-07-10 10:30:06,584 [myid:] - INFO [main:QuorumPeer$QuorumServer@167] - Resolved hostname: heron01 to address: heron01/218.195.228.24
2018-07-10 10:30:06,584 [myid:] - ERROR [main:QuorumPeerConfig@345] - Invalid configuration, only one server specified (ignoring)
2018-07-10 10:30:06,585 [myid:] - INFO [main:ZooKeeperServerMain@96] - Starting server
2018-07-10 10:30:06,589 [myid:] - INFO [main:Environment@100] - Server environment:zookeeper.version=3.4.10-39d3a4f269333c922ed3db283be479f9deacaa0f, built on 03/23/2017 10:13 GMT
2018-07-10 10:30:06,589 [myid:] - INFO [main:Environment@100] - Server environment:host.name=heron01
2018-07-10 10:30:06,589 [myid:] - INFO [main:Environment@100] - Server environment:java.version=1.8.0_151
2018-07-10 10:30:06,589 [myid:] - INFO [main:Environment@100] - Server environment:java.vendor=Oracle Corporation
2018-07-10 10:30:06,589 [myid:] - INFO [main:Environment@100] - Server environment:java.home=/usr/java/jdk1.8.0_151/jre
2018-07-10 10:30:06,590 [myid:] - INFO [main:Environment@100] - Server environment:java.class.path=/home/yitian/zookeeper/zookeeper-3.4.10/bin/../build/classes:/home/yitian/zookeeper/zookeeper-3.4.10/bin/../build/lib/*.jar:/home/yitian/zookeeper/zookeeper-3.4.10/bin/../lib/slf4j-log4j12-1.6.1.jar:/home/yitian/zookeeper/zookeeper-3.4.10/bin/../lib/slf4j-api-1.6.1.jar:/home/yitian/zookeeper/zookeeper-3.4.10/bin/../lib/netty-3.10.5.Final.jar:/home/yitian/zookeeper/zookeeper-3.4.10/bin/../lib/log4j-1.2.16.jar:/home/yitian/zookeeper/zookeeper-3.4.10/bin/../lib/jline-0.9.94.jar:/home/yitian/zookeeper/zookeeper-3.4.10/bin/../zookeeper-3.4.10.jar:/home/yitian/zookeeper/zookeeper-3.4.10/bin/../src/java/lib/*.jar:/home/yitian/zookeeper/zookeeper-3.4.10/bin/../conf:/home/yitian/zookeeper/zookeeper-3.4.10/bin/../build/classes:/home/yitian/zookeeper/zookeeper-3.4.10/bin/../build/lib/*.jar:/home/yitian/zookeeper/zookeeper-3.4.10/bin/../lib/slf4j-log4j12-1.6.1.jar:/home/yitian/zookeeper/zookeeper-3.4.10/bin/../lib/slf4j-api-1.6.1.jar:/home/yitian/zookeeper/zookeeper-3.4.10/bin/../lib/netty-3.10.5.Final.jar:/home/yitian/zookeeper/zookeeper-3.4.10/bin/../lib/log4j-1.2.16.jar:/home/yitian/zookeeper/zookeeper-3.4.10/bin/../lib/jline-0.9.94.jar:/home/yitian/zookeeper/zookeeper-3.4.10/bin/../zookeeper-3.4.10.jar:/home/yitian/zookeeper/zookeeper-3.4.10/bin/../src/java/lib/*.jar:/home/yitian/zookeeper/zookeeper-3.4.10/bin/../conf:.:/usr/java/jdk1.8.0_151/lib:/usr/java/jdk1.8.0_151/jre/lib
2018-07-10 10:30:06,590 [myid:] - INFO [main:Environment@100] - Server environment:java.library.path=/usr/java/packages/lib/amd64:/usr/lib64:/lib64:/lib:/usr/lib
2018-07-10 10:30:06,590 [myid:] - INFO [main:Environment@100] - Server environment:java.io.tmpdir=/tmp
2018-07-10 10:30:06,590 [myid:] - INFO [main:Environment@100] - Server environment:java.compiler=<NA>
2018-07-10 10:30:06,590 [myid:] - INFO [main:Environment@100] - Server environment:os.name=Linux
2018-07-10 10:30:06,590 [myid:] - INFO [main:Environment@100] - Server environment:os.arch=amd64
2018-07-10 10:30:06,591 [myid:] - INFO [main:Environment@100] - Server environment:os.version=4.13.0-43-generic
2018-07-10 10:30:06,591 [myid:] - INFO [main:Environment@100] - Server environment:user.name=yitian
2018-07-10 10:30:06,591 [myid:] - INFO [main:Environment@100] - Server environment:user.home=/home/yitian
2018-07-10 10:30:06,591 [myid:] - INFO [main:Environment@100] - Server environment:user.dir=/home/yitian
2018-07-10 10:30:06,595 [myid:] - INFO [main:ZooKeeperServer@829] - tickTime set to 5000
2018-07-10 10:30:06,595 [myid:] - INFO [main:ZooKeeperServer@838] - minSessionTimeout set to -1
2018-07-10 10:30:06,595 [myid:] - INFO [main:ZooKeeperServer@847] - maxSessionTimeout set to -1
2018-07-10 10:30:06,601 [myid:] - INFO [main:NIOServerCnxnFactory@89] - binding to port 0.0.0.0/0.0.0.0:2181
2018-07-10 10:30:07,585 [myid:] - INFO [NIOServerCxn.Factory:0.0.0.0/0.0.0.0:2181:NIOServerCnxnFactory@192] - Accepted socket connection from /218.195.228.24:39618
2018-07-10 10:30:07,600 [myid:] - INFO [NIOServerCxn.Factory:0.0.0.0/0.0.0.0:2181:ZooKeeperServer@935] - Client attempting to renew session 0x16482052aec0004 at /218.195.228.24:39618
2018-07-10 10:30:07,608 [myid:] - INFO [NIOServerCxn.Factory:0.0.0.0/0.0.0.0:2181:ZooKeeperServer@687] - Established session 0x16482052aec0004 with negotiated timeout 10000 for client /218.195.228.24:39618
2018-07-10 10:30:07,624 [myid:] - INFO [ProcessThread(sid:0 cport:2181)::PrepRequestProcessor@648] - Got user-level KeeperException when processing sessionid:0x16482052aec0004 type:create cxid:0x1c zxid:0x158f txntype:-1 reqpath:n/a Error Path:/aurora/scheduler/member_0000000454 Error:KeeperErrorCode = NodeExists for /aurora/scheduler/member_0000000454
2018-07-10 10:30:07,625 [myid:] - INFO [SyncThread:0:FileTxnLog@203] - Creating new log file: log.158f
2018-07-10 10:30:09,917 [myid:] - INFO [NIOServerCxn.Factory:0.0.0.0/0.0.0.0:2181:NIOServerCnxnFactory@192] - Accepted socket connection from /218.195.228.24:39622
2018-07-10 10:30:09,917 [myid:] - INFO [NIOServerCxn.Factory:0.0.0.0/0.0.0.0:2181:NIOServerCnxnFactory@192] - Accepted socket connection from /218.195.228.24:39620
2018-07-10 10:30:09,917 [myid:] - WARN [NIOServerCxn.Factory:0.0.0.0/0.0.0.0:2181:ZooKeeperServer@896] - Connection request from old client /218.195.228.24:39622; will be dropped if server is in r-o mode
2018-07-10 10:30:09,917 [myid:] - INFO [NIOServerCxn.Factory:0.0.0.0/0.0.0.0:2181:ZooKeeperServer@935] - Client attempting to renew session 0x16482052aec0000 at /218.195.228.24:39622
2018-07-10 10:30:09,918 [myid:] - INFO [NIOServerCxn.Factory:0.0.0.0/0.0.0.0:2181:ZooKeeperServer@687] - Established session 0x16482052aec0000 with negotiated timeout 10000 for client /218.195.228.24:39622
2018-07-10 10:30:09,918 [myid:] - INFO [NIOServerCxn.Factory:0.0.0.0/0.0.0.0:2181:NIOServerCnxnFactory@192] - Accepted socket connection from /218.195.228.24:39626
2018-07-10 10:30:09,918 [myid:] - WARN [NIOServerCxn.Factory:0.0.0.0/0.0.0.0:2181:ZooKeeperServer@896] - Connection request from old client /218.195.228.24:39620; will be dropped if server is in r-o mode
2018-07-10 10:30:09,919 [myid:] - INFO [NIOServerCxn.Factory:0.0.0.0/0.0.0.0:2181:ZooKeeperServer@935] - Client attempting to renew session 0x16482052aec0006 at /218.195.228.24:39620
2018-07-10 10:30:09,919 [myid:] - INFO [NIOServerCxn.Factory:0.0.0.0/0.0.0.0:2181:ZooKeeperServer@687] - Established session 0x16482052aec0006 with negotiated timeout 10000 for client /218.195.228.24:39620
2018-07-10 10:30:09,919 [myid:] - INFO [NIOServerCxn.Factory:0.0.0.0/0.0.0.0:2181:NIOServerCnxnFactory@192] - Accepted socket connection from /218.195.228.24:39628
2018-07-10 10:30:09,919 [myid:] - WARN [NIOServerCxn.Factory:0.0.0.0/0.0.0.0:2181:ZooKeeperServer@896] - Connection request from old client /218.195.228.24:39626; will be dropped if server is in r-o mode
2018-07-10 10:30:09,919 [myid:] - INFO [NIOServerCxn.Factory:0.0.0.0/0.0.0.0:2181:ZooKeeperServer@935] - Client attempting to renew session 0x16482052aec0001 at /218.195.228.24:39626
2018-07-10 10:30:09,920 [myid:] - INFO [NIOServerCxn.Factory:0.0.0.0/0.0.0.0:2181:ZooKeeperServer@687] - Established session 0x16482052aec0001 with negotiated timeout 10000 for client /218.195.228.24:39626
2018-07-10 10:30:09,920 [myid:] - INFO [NIOServerCxn.Factory:0.0.0.0/0.0.0.0:2181:NIOServerCnxnFactory@192] - Accepted socket connection from /218.195.228.24:39630
2018-07-10 10:30:09,920 [myid:] - WARN [NIOServerCxn.Factory:0.0.0.0/0.0.0.0:2181:ZooKeeperServer@896] - Connection request from old client /218.195.228.24:39628; will be dropped if server is in r-o mode
2018-07-10 10:30:09,920 [myid:] - INFO [NIOServerCxn.Factory:0.0.0.0/0.0.0.0:2181:ZooKeeperServer@935] - Client attempting to renew session 0x16482052aec0007 at /218.195.228.24:39628
2018-07-10 10:30:09,921 [myid:] - INFO [NIOServerCxn.Factory:0.0.0.0/0.0.0.0:2181:ZooKeeperServer@687] - Established session 0x16482052aec0007 with negotiated timeout 10000 for client /218.195.228.24:39628
2018-07-10 10:30:09,921 [myid:] - WARN [NIOServerCxn.Factory:0.0.0.0/0.0.0.0:2181:ZooKeeperServer@896] - Connection request from old client /218.195.228.24:39630; will be dropped if server is in r-o mode
2018-07-10 10:30:09,921 [myid:] - INFO [NIOServerCxn.Factory:0.0.0.0/0.0.0.0:2181:ZooKeeperServer@935] - Client attempting to renew session 0x16482052aec0005 at /218.195.228.24:39630
2018-07-10 10:30:09,921 [myid:] - INFO [NIOServerCxn.Factory:0.0.0.0/0.0.0.0:2181:ZooKeeperServer@687] - Established session 0x16482052aec0005 with negotiated timeout 10000 for client /218.195.228.24:39630
2018-07-10 10:30:09,922 [myid:] - INFO [NIOServerCxn.Factory:0.0.0.0/0.0.0.0:2181:NIOServerCnxnFactory@192] - Accepted socket connection from /218.195.228.24:39632
2018-07-10 10:30:09,922 [myid:] - WARN [NIOServerCxn.Factory:0.0.0.0/0.0.0.0:2181:ZooKeeperServer@896] - Connection request from old client /218.195.228.24:39632; will be dropped if server is in r-o mode
2018-07-10 10:30:09,922 [myid:] - INFO [NIOServerCxn.Factory:0.0.0.0/0.0.0.0:2181:ZooKeeperServer@935] - Client attempting to renew session 0x16482052aec0002 at /218.195.228.24:39632
2018-07-10 10:30:09,922 [myid:] - INFO [NIOServerCxn.Factory:0.0.0.0/0.0.0.0:2181:ZooKeeperServer@687] - Established session 0x16482052aec0002 with negotiated timeout 10000 for client /218.195.228.24:39632
2018-07-10 10:30:09,922 [myid:] - INFO [NIOServerCxn.Factory:0.0.0.0/0.0.0.0:2181:NIOServerCnxnFactory@192] - Accepted socket connection from /218.195.228.24:39634
2018-07-10 10:30:09,923 [myid:] - WARN [NIOServerCxn.Factory:0.0.0.0/0.0.0.0:2181:ZooKeeperServer@896] - Connection request from old client /218.195.228.24:39634; will be dropped if server is in r-o mode
2018-07-10 10:30:09,923 [myid:] - INFO [NIOServerCxn.Factory:0.0.0.0/0.0.0.0:2181:ZooKeeperServer@935] - Client attempting to renew session 0x16482052aec0003 at /218.195.228.24:39634
2018-07-10 10:30:09,925 [myid:] - INFO [NIOServerCxn.Factory:0.0.0.0/0.0.0.0:2181:ZooKeeperServer@687] - Established session 0x16482052aec0003 with negotiated timeout 10000 for client /218.195.228.24:39634
2018-07-10 10:56:28,040 [myid:] - INFO [NIOServerCxn.Factory:0.0.0.0/0.0.0.0:2181:NIOServerCnxnFactory@192] - Accepted socket connection from /218.195.228.24:39852
2018-07-10 10:56:28,043 [myid:] - INFO [NIOServerCxn.Factory:0.0.0.0/0.0.0.0:2181:ZooKeeperServer@942] - Client attempting to establish new session at /218.195.228.24:39852
2018-07-10 10:56:28,044 [myid:] - INFO [SyncThread:0:ZooKeeperServer@687] - Established session 0x164820646770000 with negotiated timeout 30000 for client /218.195.228.24:39852
2018-07-10 10:56:37,924 [myid:] - INFO [NIOServerCxn.Factory:0.0.0.0/0.0.0.0:2181:NIOServerCnxnFactory@192] - Accepted socket connection from /218.195.228.24:39860
2018-07-10 10:56:37,925 [myid:] - INFO [NIOServerCxn.Factory:0.0.0.0/0.0.0.0:2181:ZooKeeperServer@942] - Client attempting to establish new session at /218.195.228.24:39860
2018-07-10 10:56:37,926 [myid:] - INFO [SyncThread:0:ZooKeeperServer@687] - Established session 0x164820646770001 with negotiated timeout 10000 for client /218.195.228.24:39860
2018-07-10 10:56:37,936 [myid:] - INFO [ProcessThread(sid:0 cport:2181)::PrepRequestProcessor@486] - Processed session termination for sessionid: 0x164820646770001
2018-07-10 10:56:37,941 [myid:] - INFO [NIOServerCxn.Factory:0.0.0.0/0.0.0.0:2181:NIOServerCnxn@1044] - Closed socket connection for client /218.195.228.24:39860 which had sessionid 0x164820646770001
2018-07-10 10:56:43,514 [myid:] - INFO [NIOServerCxn.Factory:0.0.0.0/0.0.0.0:2181:NIOServerCnxnFactory@192] - Accepted socket connection from /218.195.228.43:35560
2018-07-10 10:56:43,516 [myid:] - INFO [NIOServerCxn.Factory:0.0.0.0/0.0.0.0:2181:ZooKeeperServer@942] - Client attempting to establish new session at /218.195.228.43:35560
2018-07-10 10:56:43,521 [myid:] - INFO [SyncThread:0:ZooKeeperServer@687] - Established session 0x164820646770002 with negotiated timeout 10000 for client /218.195.228.43:35560
2018-07-10 10:56:44,022 [myid:] - INFO [NIOServerCxn.Factory:0.0.0.0/0.0.0.0:2181:NIOServerCnxnFactory@192] - Accepted socket connection from /218.195.228.19:50174
2018-07-10 10:56:44,026 [myid:] - INFO [NIOServerCxn.Factory:0.0.0.0/0.0.0.0:2181:ZooKeeperServer@942] - Client attempting to establish new session at /218.195.228.19:50174
2018-07-10 10:56:44,031 [myid:] - INFO [SyncThread:0:ZooKeeperServer@687] - Established session 0x164820646770003 with negotiated timeout 10000 for client /218.195.228.19:50174
2018-07-10 10:56:44,130 [myid:] - INFO [NIOServerCxn.Factory:0.0.0.0/0.0.0.0:2181:NIOServerCnxnFactory@192] - Accepted socket connection from /218.195.228.28:44134
2018-07-10 10:56:44,149 [myid:] - INFO [NIOServerCxn.Factory:0.0.0.0/0.0.0.0:2181:ZooKeeperServer@942] - Client attempting to establish new session at /218.195.228.28:44134
2018-07-10 10:56:44,154 [myid:] - INFO [SyncThread:0:ZooKeeperServer@687] - Established session 0x164820646770004 with negotiated timeout 10000 for client /218.195.228.28:44134
2018-07-10 10:56:45,730 [myid:] - INFO [ProcessThread(sid:0 cport:2181)::PrepRequestProcessor@486] - Processed session termination for sessionid: 0x164820646770000
2018-07-10 10:56:45,736 [myid:] - INFO [NIOServerCxn.Factory:0.0.0.0/0.0.0.0:2181:NIOServerCnxn@1044] - Closed socket connection for client /218.195.228.24:39852 which had sessionid 0x164820646770000
2018-07-10 10:57:16,966 [myid:] - INFO [NIOServerCxn.Factory:0.0.0.0/0.0.0.0:2181:NIOServerCnxnFactory@192] - Accepted socket connection from /218.195.228.43:35572
2018-07-10 10:57:16,970 [myid:] - WARN [NIOServerCxn.Factory:0.0.0.0/0.0.0.0:2181:NIOServerCnxn@368] - caught end of stream exception
EndOfStreamException: Unable to read additional data from client sessionid 0x0, likely client has closed socket
at org.apache.zookeeper.server.NIOServerCnxn.doIO(NIOServerCnxn.java:239)
at org.apache.zookeeper.server.NIOServerCnxnFactory.run(NIOServerCnxnFactory.java:203)
at java.lang.Thread.run(Thread.java:748)
2018-07-10 10:57:16,977 [myid:] - INFO [NIOServerCxn.Factory:0.0.0.0/0.0.0.0:2181:NIOServerCnxn@1044] - Closed socket connection for client /218.195.228.43:35572 (no session established for client)
2018-07-10 10:57:16,979 [myid:] - INFO [NIOServerCxn.Factory:0.0.0.0/0.0.0.0:2181:NIOServerCnxnFactory@192] - Accepted socket connection from /218.195.228.43:35574
2018-07-10 10:57:16,980 [myid:] - INFO [NIOServerCxn.Factory:0.0.0.0/0.0.0.0:2181:ZooKeeperServer@942] - Client attempting to establish new session at /218.195.228.43:35574
2018-07-10 10:57:16,984 [myid:] - INFO [SyncThread:0:ZooKeeperServer@687] - Established session 0x164820646770005 with negotiated timeout 10000 for client /218.195.228.43:35574
2018-07-10 10:57:17,095 [myid:] - INFO [NIOServerCxn.Factory:0.0.0.0/0.0.0.0:2181:NIOServerCnxnFactory@192] - Accepted socket connection from /218.195.228.43:35578
2018-07-10 10:57:17,097 [myid:] - WARN [NIOServerCxn.Factory:0.0.0.0/0.0.0.0:2181:ZooKeeperServer@896] - Connection request from old client /218.195.228.43:35578; will be dropped if server is in r-o mode
2018-07-10 10:57:17,097 [myid:] - INFO [NIOServerCxn.Factory:0.0.0.0/0.0.0.0:2181:ZooKeeperServer@942] - Client attempting to establish new session at /218.195.228.43:35578
2018-07-10 10:57:17,101 [myid:] - INFO [SyncThread:0:ZooKeeperServer@687] - Established session 0x164820646770006 with negotiated timeout 30000 for client /218.195.228.43:35578
2018-07-10 10:57:17,747 [myid:] - INFO [NIOServerCxn.Factory:0.0.0.0/0.0.0.0:2181:NIOServerCnxnFactory@192] - Accepted socket connection from /218.195.228.19:50186
2018-07-10 10:57:17,749 [myid:] - WARN [NIOServerCxn.Factory:0.0.0.0/0.0.0.0:2181:NIOServerCnxn@368] - caught end of stream exception
EndOfStreamException: Unable to read additional data from client sessionid 0x0, likely client has closed socket
at org.apache.zookeeper.server.NIOServerCnxn.doIO(NIOServerCnxn.java:239)
at org.apache.zookeeper.server.NIOServerCnxnFactory.run(NIOServerCnxnFactory.java:203)
at java.lang.Thread.run(Thread.java:748)
2018-07-10 10:57:17,751 [myid:] - INFO [NIOServerCxn.Factory:0.0.0.0/0.0.0.0:2181:NIOServerCnxn@1044] - Closed socket connection for client /218.195.228.19:50186 (no session established for client)
2018-07-10 10:57:17,752 [myid:] - INFO [NIOServerCxn.Factory:0.0.0.0/0.0.0.0:2181:NIOServerCnxnFactory@192] - Accepted socket connection from /218.195.228.19:50188
2018-07-10 10:57:17,752 [myid:] - INFO [NIOServerCxn.Factory:0.0.0.0/0.0.0.0:2181:ZooKeeperServer@942] - Client attempting to establish new session at /218.195.228.19:50188
2018-07-10 10:57:17,756 [myid:] - INFO [SyncThread:0:ZooKeeperServer@687] - Established session 0x164820646770007 with negotiated timeout 10000 for client /218.195.228.19:50188
2018-07-10 10:57:18,742 [myid:] - INFO [NIOServerCxn.Factory:0.0.0.0/0.0.0.0:2181:NIOServerCnxnFactory@192] - Accepted socket connection from /218.195.228.19:50190
2018-07-10 10:57:18,743 [myid:] - WARN [NIOServerCxn.Factory:0.0.0.0/0.0.0.0:2181:ZooKeeperServer@896] - Connection request from old client /218.195.228.19:50190; will be dropped if server is in r-o mode
2018-07-10 10:57:18,744 [myid:] - INFO [NIOServerCxn.Factory:0.0.0.0/0.0.0.0:2181:ZooKeeperServer@942] - Client attempting to establish new session at /218.195.228.19:50190
2018-07-10 10:57:18,751 [myid:] - INFO [SyncThread:0:ZooKeeperServer@687] - Established session 0x164820646770008 with negotiated timeout 30000 for client /218.195.228.19:50190
2018-07-10 10:57:20,456 [myid:] - INFO [NIOServerCxn.Factory:0.0.0.0/0.0.0.0:2181:NIOServerCnxnFactory@192] - Accepted socket connection from /218.195.228.43:35586
2018-07-10 10:57:20,458 [myid:] - INFO [NIOServerCxn.Factory:0.0.0.0/0.0.0.0:2181:ZooKeeperServer@942] - Client attempting to establish new session at /218.195.228.43:35586
2018-07-10 10:57:20,463 [myid:] - INFO [SyncThread:0:ZooKeeperServer@687] - Established session 0x164820646770009 with negotiated timeout 30000 for client /218.195.228.43:35586
2018-07-10 10:57:36,004 [myid:] - INFO [NIOServerCxn.Factory:0.0.0.0/0.0.0.0:2181:NIOServerCnxnFactory@192] - Accepted socket connection from /218.195.228.28:44146
2018-07-10 10:57:36,004 [myid:] - WARN [NIOServerCxn.Factory:0.0.0.0/0.0.0.0:2181:NIOServerCnxn@368] - caught end of stream exception
EndOfStreamException: Unable to read additional data from client sessionid 0x0, likely client has closed socket
at org.apache.zookeeper.server.NIOServerCnxn.doIO(NIOServerCnxn.java:239)
at org.apache.zookeeper.server.NIOServerCnxnFactory.run(NIOServerCnxnFactory.java:203)
at java.lang.Thread.run(Thread.java:748)
2018-07-10 10:57:36,004 [myid:] - INFO [NIOServerCxn.Factory:0.0.0.0/0.0.0.0:2181:NIOServerCnxn@1044] - Closed socket connection for client /218.195.228.28:44146 (no session established for client)
2018-07-10 10:57:36,006 [myid:] - INFO [NIOServerCxn.Factory:0.0.0.0/0.0.0.0:2181:NIOServerCnxnFactory@192] - Accepted socket connection from /218.195.228.28:44148
2018-07-10 10:57:36,006 [myid:] - INFO [NIOServerCxn.Factory:0.0.0.0/0.0.0.0:2181:ZooKeeperServer@942] - Client attempting to establish new session at /218.195.228.28:44148
2018-07-10 10:57:36,008 [myid:] - INFO [SyncThread:0:ZooKeeperServer@687] - Established session 0x16482064677000a with negotiated timeout 10000 for client /218.195.228.28:44148
2018-07-10 10:57:36,892 [myid:] - INFO [NIOServerCxn.Factory:0.0.0.0/0.0.0.0:2181:NIOServerCnxnFactory@192] - Accepted socket connection from /218.195.228.28:44152
2018-07-10 10:57:36,893 [myid:] - WARN [NIOServerCxn.Factory:0.0.0.0/0.0.0.0:2181:ZooKeeperServer@896] - Connection request from old client /218.195.228.28:44152; will be dropped if server is in r-o mode
2018-07-10 10:57:36,894 [myid:] - INFO [NIOServerCxn.Factory:0.0.0.0/0.0.0.0:2181:ZooKeeperServer@942] - Client attempting to establish new session at /218.195.228.28:44152
2018-07-10 10:57:36,898 [myid:] - INFO [SyncThread:0:ZooKeeperServer@687] - Established session 0x16482064677000b with negotiated timeout 30000 for client /218.195.228.28:44152
在上述zookeeper.log中，IP为218.195.228.24的主机为主节点，IP为28、19、43的主机列表为代理节点。我尝试了很多方法，但都不起作用。问题的原因是什么？我该怎么修？非常感谢你的帮助。
Yitan-如果您在Aurora中使用，并且在提交过程中，客户端会直接将逻辑计划写入zookeeper。在heron客户端上运行的zookeeper客户端可能没有正常终止。
根据以下ZK问题，问题似乎在客户端：https://issues.apache.org/jira/browse/ZOOKEEPER-1582
您可能需要检查Zookeeper客户端尝试连接的日志。